/* ==========================================================================
   unknowns — site.css (forked from UI kit for the 2026 website)
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
section[id] { scroll-margin-top: 92px; }
body { background: var(--bg-1); color: var(--fg-1); margin: 0; }

/* ---------- Nav ---------- */
.un-nav {
  position: sticky; top: 0; z-index: 40;
  background: #fff;
  border-bottom: 1px solid var(--border-1);
}
.un-nav-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 26px 48px;
}
.un-mark { display: inline-flex; align-items: center; height: 52px; text-decoration: none; }
.un-mark img { height: 100%; width: auto; display: block; }
.un-links { display: flex; gap: 36px; }
.un-links a {
  font-size: 17px; font-weight: 500;
  color: var(--fg-1); text-decoration: none;
  letter-spacing: 0.01em;
  transition: color .12s var(--ease-out);
  position: relative; padding: 4px 0;
}
.un-links a:hover, .un-links a.active, .un-links a.hovered { color: var(--un-blue); }
.un-links a { white-space: nowrap; }
.un-links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1.5px; background: var(--un-blue);
}

/* ---------- Méga-menu (volet desktop) ---------- */
.un-burger { display: none; }
.un-mega {
  position: absolute; top: 100%; left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border-1);
  box-shadow: 0 24px 48px -24px rgba(10, 20, 60, 0.22);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  transition: max-height .3s var(--ease-out), opacity .2s var(--ease-out);
}
.un-mega.open {
  max-height: 460px;
  opacity: 1;
  pointer-events: auto;
}
.un-mega-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 72px;
  padding: 48px 48px 52px;
  max-width: 1320px; margin: 0 auto;
}
.un-mega-left { display: flex; flex-direction: column; align-items: flex-start; }
.un-mega-summary {
  font-size: clamp(20px, 1.6vw, 26px);
  font-weight: 400; letter-spacing: -0.02em; line-height: 1.32;
  color: var(--fg-1);
  margin: 16px 0 24px;
  text-wrap: pretty;
  max-width: 30ch;
}
.un-mega-allink {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.02em;
  color: var(--un-blue); text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
}
.un-mega-allink:hover { color: var(--un-blue-deep); }
.un-mega-right {
  list-style: none; margin: 0; padding: 0;
  border-top: 1px solid var(--border-1);
}
.un-mega-right li { border-bottom: 1px solid var(--border-1); }
.un-mega-right a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 16px 4px;
  text-decoration: none;
  color: var(--fg-1);
  transition: padding .18s var(--ease-out), color .12s var(--ease-out);
}
.un-mega-right a:hover { color: var(--un-blue); padding-left: 12px; }
.un-mega-idx {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--fg-3);
}
.un-mega-right a:hover .un-mega-idx { color: var(--un-blue); }
.un-mega-slabel {
  font-size: 18px; font-weight: 500; letter-spacing: -0.01em;
}
.un-mega-arrow {
  font-size: 16px; color: var(--fg-3);
  transition: transform .18s var(--ease-out), color .12s var(--ease-out);
}
.un-mega-right a:hover .un-mega-arrow { color: var(--un-blue); transform: translateX(3px); }

/* ---------- Menu mobile plein écran ---------- */
.un-mobile {
  position: fixed; inset: 0; z-index: 60;
  background: #fff;
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform .3s var(--ease-out);
  overflow-y: auto;
}
.un-mobile.open { transform: translateX(0); }
.un-mobile-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-1);
  position: sticky; top: 0; background: #fff; z-index: 1;
}
.un-mobile-close {
  width: 40px; height: 40px; border: 1px solid var(--border-1);
  background: none; border-radius: 999px; font-size: 18px; cursor: pointer;
  color: var(--fg-1);
}
.un-mobile-list { padding: 8px 20px 40px; }
.un-mobile-group { border-bottom: 1px solid var(--border-1); }
.un-mobile-grow { display: flex; align-items: center; justify-content: space-between; }
.un-mobile-title {
  flex: 1;
  font-size: 24px; font-weight: 500; letter-spacing: -0.02em;
  color: var(--fg-1); text-decoration: none;
  padding: 20px 0;
}
.un-mobile-toggle {
  width: 44px; height: 44px; flex: none;
  background: none; border: none; cursor: pointer;
  position: relative;
}
.un-mobile-icon, .un-mobile-icon::before {
  content: ''; position: absolute; background: var(--fg-1);
  transition: transform .22s var(--ease-out), opacity .22s var(--ease-out);
}
.un-mobile-icon { top: 50%; left: 12px; right: 12px; height: 2px; transform: translateY(-50%); }
.un-mobile-icon::before { left: 50%; top: -10px; bottom: -10px; width: 2px; transform: translateX(-50%); }
.un-mobile-group.open .un-mobile-icon::before { transform: translateX(-50%) scaleY(0); opacity: 0; }
.un-mobile-sub {
  overflow: hidden; max-height: 0;
}
.un-mobile-sub-inner { padding-bottom: 4px; }
.un-mobile-summary {
  font-size: 15px; line-height: 1.5; color: var(--fg-2);
  margin: 0 0 12px; max-width: 46ch;
}
.un-mobile-sub ul { list-style: none; margin: 0; padding: 0 0 20px; }
.un-mobile-sub li a {
  display: block; padding: 11px 0;
  font-size: 16px; color: var(--fg-1); text-decoration: none;
  border-top: 1px solid var(--border-1);
}
.un-mobile-sub li a:hover { color: var(--un-blue); }
.un-mobile-cta { margin-top: 28px; width: 100%; justify-content: center; }
.un-cta {
  font-family: var(--font-sans);
  font-size: 16px; font-weight: 500;
  padding: 13px 24px;
  background: var(--un-blue); color: #fff;
  border: none;
  border-radius: 999px;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background .12s var(--ease-out);
  display: inline-flex; align-items: center; gap: 8px;
}
.un-cta:hover { background: var(--un-blue-deep); }
.un-cta .arr { font-size: 16px; transition: transform .18s var(--ease-out); }
.un-cta:hover .arr { transform: translateX(3px); }

/* ---------- Sticky floating contact CTA ---------- */
.un-floating-cta {
  position: fixed; right: 32px; bottom: 32px;
  z-index: 30;
  background: var(--un-blue); color: #fff;
  padding: var(--btn-pad-y) var(--btn-pad-x); border-radius: 999px;
  font-size: var(--btn-fs); font-weight: 500;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  box-shadow: 0 8px 28px rgba(0,0,255,0.22);
  transition: background .12s var(--ease-out), transform .18s var(--ease-out);
  cursor: pointer; border: none;
  font-family: var(--font-sans);
}
.un-floating-cta:hover { background: var(--un-blue-deep); transform: translateY(-2px); }
.un-floating-cta .arr { transition: transform .18s var(--ease-out); }
.un-floating-cta:hover .arr { transform: translateX(3px); }

/* ---------- Buttons ---------- */
.un-btn {
  font-family: var(--font-sans);
  font-weight: 500; font-size: var(--btn-fs);
  padding: var(--btn-pad-y) var(--btn-pad-x);
  border: none; cursor: pointer;
  border-radius: 999px;
  letter-spacing: -0.005em;
  transition: background .12s var(--ease-out), color .12s var(--ease-out);
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none;
}
.un-btn-primary { background: var(--un-blue); color: #fff; }
.un-btn-primary:hover { background: var(--un-blue-deep); color: #fff; }
.un-btn-ghost {
  background: transparent; color: var(--fg-1);
  border: 2px solid var(--fg-1);
  border-radius: 0; padding: 12px 24px;
}
.un-btn-ghost:hover { background: var(--fg-1); color: #fff; }
.un-btn-text {
  background: none; color: var(--un-blue);
  padding: 8px 0; border-radius: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}
.un-btn-text:hover { color: var(--un-blue-deep); }
.un-arrow { display: inline-block; transition: transform .18s var(--ease-out); }
.un-btn:hover .un-arrow, a:hover .un-arrow { transform: translateX(3px); }

/* ---------- Eyebrow + rule ---------- */
.un-eyebrow {
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-3);
}
.un-rule { border: none; border-top: 1.5px solid var(--border-strong); margin: 48px 0; }

/* ---------- Section base ---------- */
.un-section {
  max-width: 1440px; margin: 0 auto;
  padding: 96px 48px;
}
.un-section-head {
  display: grid; grid-template-columns: 1fr 1.6fr;
  gap: 48px; align-items: start;
  margin-bottom: 64px;
}
.un-section-head .lede {
  font-size: 20px; line-height: 1.5;
  color: var(--fg-2); max-width: 52ch;
  margin: 34px 0 0;
}
.un-section h2 {
  font-size: clamp(40px, 4.6vw, 68px);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.02;
  margin: 0;
  max-width: 22ch;
}
.un-section h2 em { font-style: italic; color: var(--un-blue); }

/* ============================================================
   HERO — Direction A (chiffres) and Direction B (manifeste)
   Tagline stays in English exactly as given.
   ============================================================ */

/* shared hero shell */
.un-hero {
  max-width: 1440px; margin: 0 auto;
  padding: 72px 48px 48px;
  position: relative;
}
.un-hero-tagline {
  font-size: clamp(52px, 6.8vw, 108px);
  font-weight: 400;
  letter-spacing: -0.028em;
  line-height: 0.98;
  margin: 32px 0 28px;
  max-width: 18ch;
  color: var(--fg-1);
}
.un-hero-tagline em {
  font-style: italic; color: var(--un-blue);
}
.un-hero-sub {
  font-size: 20px; line-height: 1.5;
  max-width: 58ch; color: var(--fg-2);
  margin: 0 0 40px;
}
.un-hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

/* --- Direction A: chiffres --- */
.hero-A .un-hero-stats {
  margin-bottom: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 4px solid var(--un-blue);
  border-bottom: 1px solid var(--border-1);
}
.hero-A .stat {
  padding: 28px 28px 28px 0;
  border-right: 1px solid var(--border-1);
  display: flex; flex-direction: column; gap: 10px;
}
.hero-A .stat:last-child { border-right: none; padding-right: 0; }
.hero-A .stat-num {
  font-size: clamp(72px, 9vw, 128px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--un-blue);
}
.hero-A .stat-label {
  font-size: 14px; color: var(--fg-2);
  line-height: 1.4; max-width: 30ch;
}
.hero-A .hero-eyebrow-row {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 24px; flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-A .hero-eyebrow-right {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--fg-3);
}

/* --- Direction B (UI-kit hero reproduction) --- */
.hero-kit { padding-top: 96px; padding-bottom: 64px; }
.hero-kit .un-hero-h1 {
  font-size: clamp(68px, 9vw, 148px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
  margin: 0 0 32px;
  max-width: 18ch;
}
.hero-kit .un-hero-h1 em {
  font-style: italic; color: var(--un-blue);
  position: relative; display: inline-block;
}
.hero-kit .un-hero-h1 em::after {
  content: ''; position: absolute; left: -4px; right: -4px; bottom: 4px;
  height: 14px; background: var(--un-yellow-sun); z-index: -1;
}
.hero-kit .un-hero-sub {
  font-size: 22px; line-height: 1.45;
  max-width: 52ch; color: var(--fg-2);
  margin-bottom: 40px;
}

/* Hero with full-bleed photographic background */
.hero-kit-photo {
  position: relative;
  max-width: none;
  margin: 0;
  padding: 56px 48px 72px;
  overflow: hidden;
  min-height: 62vh;
  color: #fff;
}
.hero-kit-photo .hero-kit-bg {
  position: absolute; inset: 0;
  background-image: url("assets/hero-bichros.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scaleX(-1);
  z-index: 0;
}
.hero-kit-photo .hero-kit-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(10,10,10,0.72) 0%, rgba(10,10,10,0.55) 38%, rgba(10,10,10,0.15) 70%, rgba(10,10,10,0) 100%),
    linear-gradient(180deg, rgba(10,10,10,0.35) 0%, rgba(10,10,10,0) 40%, rgba(10,10,10,0.25) 100%);
  z-index: 1;
}
.hero-kit-photo .hero-kit-inner {
  position: relative; z-index: 2;
  max-width: 1440px;
  margin: 0 auto;
}
.hero-kit-photo .hero-kit-eyebrow { color: rgba(255,255,255,0.78); }
.hero-kit-photo .un-hero-h1 { color: #fff; }
.hero-kit-photo .un-hero-h1 em { color: var(--un-yellow-sun); }
.hero-kit-photo .un-hero-h1 em::after { background: transparent; }
.hero-kit-photo .un-hero-sub { color: rgba(255,255,255,0.88); max-width: 52ch; }
.hero-kit-photo .un-btn-primary { background: #fff; color: var(--un-blue); }
.hero-kit-photo .un-btn-primary:hover { background: var(--un-yellow-sun); color: #0A0A0A; }
.hero-kit-photo .hero-kit-textlink { color: #fff; }
.hero-kit-photo .hero-kit-textlink:hover { color: var(--un-yellow-sun); }

/* Hero H1 — fluid sizing for the photo hero (HP) */
.hero-kit-photo .un-hero-h1.hero-kit-h1-fluid {
  width: auto;
  max-width: 18ch;
  margin: 20px 0 32px;
  font-size: clamp(40px, 6vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  text-align: left;
  color: #f5f5f5;
  text-wrap: balance;
}
.hero-kit-photo .un-hero-h1.hero-kit-h1-fluid i {
  font-style: italic;
  color: var(--un-yellow-sun);
}

/* Secondary CTA on photo hero — white-bordered pill */
.un-btn-hero-ghost {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--btn-fs);
  padding: var(--btn-pad-y) var(--btn-pad-x);
  border-radius: 999px;
  border: 1.5px solid rgba(255,255,255,0.85);
  color: #fff;
  background: transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background .14s var(--ease-out), color .14s var(--ease-out), border-color .14s var(--ease-out);
}
.un-btn-hero-ghost:hover {
  background: #fff;
  color: #0A0A0A;
  border-color: #fff;
}

@media (max-width: 960px) {
  .hero-kit-photo { padding: 72px 24px 56px; min-height: 88vh; }
  .hero-kit-photo .hero-kit-scrim {
    background: linear-gradient(180deg, rgba(10,10,10,0.2) 0%, rgba(10,10,10,0.55) 40%, rgba(10,10,10,0.85) 100%);
  }
  .hero-kit-photo .hero-kit-bg { background-position: center; }
}
a.un-btn-sun, .un-btn-sun {
  font-family: var(--font-sans); font-weight: 500; font-size: var(--btn-fs);
  padding: var(--btn-pad-y) var(--btn-pad-x); border: none; cursor: pointer; border-radius: 999px;
  letter-spacing: -0.005em;
  background: var(--un-yellow-sun); background-color: var(--un-yellow-sun); color: #0A0A0A;
  transition: background .12s var(--ease-out);
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none;
}
a.un-btn-sun:hover, .un-btn-sun:hover { background: var(--un-yellow-sun-press); background-color: var(--un-yellow-sun-press); color: #0A0A0A; }

/* Manifesto contrasting block (flat aplat, like Observatoire) */
.un-manifesto-block {
  background: var(--un-blue); color: #fff;
  padding: 112px 48px;
  border-top: 4px solid var(--un-yellow-sun);
}
.un-manifesto-inner {
  max-width: 1440px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 64px; align-items: start;
}
.un-manifesto-block .un-eyebrow { color: rgba(255,255,255,.7); }
.un-manifesto-text {
  font-size: clamp(44px, 5.6vw, 92px);
  font-weight: 400;
  letter-spacing: -0.028em;
  line-height: 1.02;
  margin: 0;
  color: #fff;
  max-width: 22ch;
}
.un-manifesto-text em {
  font-style: italic;
  color: var(--un-yellow-sun);
}

/* ============================================================
   FORMULA BLOCK — (Sciences sociales + Design)^IA
   Layout 100% flux : flex + flex-wrap, aucun position:absolute.
   Flèches en CSS pur (caractères stylisés).
   ============================================================ */
.un-formula-block {
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  background: #F5F4EF;
}
.un-formula-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 96px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 56px;
}

/* Formule typographique — flex baseline */
.un-formula {
  width: 100%;
  display: flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.18em;
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1;
  color: var(--fg-1);
  text-align: center;
}
.un-formula > * {
  font-size: clamp(2rem, 8vw, 6.5rem);
  line-height: 1;
}
.un-formula .paren { color: var(--un-blue); font-weight: 400; }
.un-formula .op { color: var(--un-blue); font-style: italic; }
.un-formula .formula-base { font-style: italic; font-weight: 400; }
.un-formula .formula-pow {
  font-size: clamp(1rem, 4vw, 3.2rem);
  font-style: italic;
  color: var(--un-blue);
  font-weight: 500;
  align-self: flex-start;
  margin-left: 0.05em;
}

/* 2 colonnes d'annotations sous l'équation */
.un-formula-cols {
  width: 100%;
  max-width: 960px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.un-formula-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
}
.un-formula-col-label {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--un-blue);
}
.un-formula-col-text {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.5;
  color: var(--fg-1);
  margin: 0;
  text-wrap: pretty;
}

/* CTA pill jaune sous les colonnes */
.un-formula-modele {
  width: 100%;
  display: flex;
  justify-content: center;
}

/* Mobile : colonnes en pile */
@media (max-width: 768px) {
  .un-formula-inner { padding: 56px 24px; gap: 40px; }
  .un-formula-cols { grid-template-columns: 1fr; gap: 32px; max-width: 100%; }
  .un-formula-col-text { font-size: 17px; }
}

/* ============================================================
   MANIFESTE — enriched text + yellow CTA
   ============================================================ */
.un-manifesto-eyebrow-col { padding-top: 12px; }
.un-manifesto-text {
  font-size: clamp(44px, 5.2vw, 84px);
  font-weight: 400;
  letter-spacing: -0.028em;
  line-height: 1.02;
  margin: 0 0 48px;
  color: #fff;
  max-width: 22ch;
  text-align: left;
}
.un-manifesto-body {
  max-width: 62ch;
  color: rgba(255, 255, 255, 0.88);
}
.un-manifesto-body p {
  font-size: 18px;
  line-height: 1.6;
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.88);
  max-width: none;
}
.un-manifesto-body p:last-child { margin-bottom: 0; }
.un-manifesto-body strong {
  color: #fff;
  font-weight: 500;
}
.un-manifesto-cta-wrap { margin-top: 40px; }
.un-manifesto-cta {
  font-size: 16px;
  padding: 16px 28px;
}

/* ============================================================
   SERVICES — replaces Défis + Offres
   ============================================================ */
.un-services {
  margin-top: 8px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-1);
}
.un-service {
  padding: 48px 40px 40px 0;
  border-right: 1px solid var(--border-1);
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 360px;
  text-decoration: none;
  color: inherit;
  transition: background .12s var(--ease-out), padding .2s var(--ease-out);
}
.un-service:not(:first-child) { padding-left: 40px; }
.un-service:first-child { padding-right: 80px; }
.un-service:last-child { border-right: none; }
.un-service:hover {
  background: var(--un-blue-wash);
}
.un-service-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--un-blue);
  letter-spacing: 0.06em;
}
.un-service-title {
  font-size: clamp(26px, 2.2vw, 34px);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.1;
  color: var(--fg-1);
  margin: 0;
  max-width: 18ch;
}
.un-service-desc {
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg-2);
  margin: 0;
  max-width: 42ch;
}
.un-service-more {
  margin-top: auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--un-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.un-service:hover .un-service-more .un-arrow { transform: translateX(4px); }

@media (max-width: 960px) {
  .un-services { grid-template-columns: 1fr; }
  .un-service {
    border-right: none;
    border-bottom: 1px solid var(--border-1);
    padding: 32px 0 !important;
    min-height: auto;
  }
  .un-service:last-child { border-bottom: none; }
}

/* ============================================================
   CAS CLIENTS — larger titles + result badge
   ============================================================ */
.un-case-title {
  font-size: clamp(32px, 3vw, 44px) !important;
}
.un-case-result {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  background: var(--un-blue-wash);
  border-left: 3px solid var(--un-blue);
}
.un-case:hover .un-case-result {
  background: #fff;
}
.un-case-result-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--un-blue);
}
.un-case-result-text {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.35;
  color: var(--fg-1);
}

/* ============================================================
   TIMELINE (films — YOU ARE HERE)
   ============================================================ */
.un-timeline-section {
  width: 100%;
  background: #F5F4EF;
  padding: 96px 0 96px;
  overflow: hidden;
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
}
.un-timeline-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}
.tl-arrow-wrap {
  position: relative;
  width: 100%;
  height: 10px;
  margin-bottom: 44px;
}
.tl-arrow {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #c8c6bc;
  clip-path: polygon(0 25%, calc(100% - 40px) 25%, calc(100% - 40px) 0%, 100% 50%, calc(100% - 40px) 100%, calc(100% - 40px) 75%, 0 75%);
}
.tl-films {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 20px;
}
.film-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 1;
  max-width: 160px;
  position: relative;
}
.film-poster {
  width: 100%;
  aspect-ratio: 2/3;
  border-radius: 4px;
  overflow: hidden;
  background: #d3d1c7;
  border: 0.5px solid rgba(0,0,0,0.12);
}
.film-poster .poster-svg { width: 100%; height: 100%; display: block; }
.film-poster img { width: 100%; height: 100%; object-fit: cover; display: block; }
.film-item.highlighted .film-poster { border: 2px solid var(--un-blue); }
.film-year {
  font-size: 12px;
  color: #888780;
  text-align: center;
  font-weight: 400;
  font-family: var(--font-mono);
}
.film-title {
  font-size: 13px;
  font-weight: 500;
  color: #444441;
  text-align: center;
  line-height: 1.3;
}
.film-subtitle {
  font-size: 11px;
  color: #8B8A82;
  text-align: center;
  line-height: 1.4;
  font-style: italic;
}
.you-are-here {
  position: absolute;
  top: -96px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  z-index: 10;
  pointer-events: none;
}
.yah-badge {
  background: var(--un-blue);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  line-height: 1.25;
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
}
.yah-pin { width: 2px; height: 24px; background: var(--un-blue); }
.yah-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--un-blue);
  border: 2.5px solid #F5F4EF;
  outline: 1.5px solid var(--un-blue);
}
@media (max-width: 960px) {
  .un-timeline-section { padding: 64px 0; }
  .un-timeline-inner { padding: 0 20px; }
  .tl-films { gap: 10px; }
  .film-subtitle { display: none; }
}

/* ============================================================
   OLD STATS BLOCK (legacy — still used for Direction A inline stats)
   ============================================================ */
.un-stats-section {
  background: var(--un-blue); color: #fff;
  padding: 96px 48px;
}
.un-stats-inner { max-width: 1440px; margin: 0 auto; }
.un-stats-inner .un-eyebrow { color: rgba(255,255,255,.7); }
.un-stats-grid {
  margin-top: 56px;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.un-stats-grid .stat {
  padding-top: 20px;
  border-top: 4px solid var(--un-yellow-sun);
}
.un-stats-grid .stat-num {
  font-size: clamp(72px, 9vw, 128px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: #fff;
}
.un-stats-grid .stat-label {
  font-size: 15px; color: rgba(255,255,255,.82);
  line-height: 1.45; margin-top: 16px; max-width: 36ch;
}
.un-stats-grid .stat-source {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,.55);
  margin-top: 12px; letter-spacing: 0.04em;
}

/* ============================================================
   DÉFIS — 3 challenges
   ============================================================ */
.un-defis {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-1);
  margin-top: 8px;
}
.un-defi {
  padding: 40px 32px 40px 0;
  border-right: 1px solid var(--border-1);
  display: flex; flex-direction: column; gap: 16px;
}
.un-defi:last-child { border-right: none; padding-right: 0; }
.un-defi:not(:first-child) { padding-left: 32px; }
.un-defi-num {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--un-blue);
  letter-spacing: 0.06em;
}
.un-defi-text {
  font-size: 22px; font-weight: 400;
  letter-spacing: -0.012em; line-height: 1.22;
  color: var(--fg-1); margin: 0;
}

/* ============================================================
   OFFRES — 3 pillars
   ============================================================ */
.un-offres {
  margin-top: 8px;
  border-top: 1px solid var(--border-1);
}
.un-offre {
  display: grid;
  grid-template-columns: 80px 1.2fr 1.4fr 40px;
  gap: 40px; align-items: start;
  padding: 48px 0;
  border-bottom: 1px solid var(--border-1);
  cursor: pointer;
  transition: padding .2s var(--ease-out), background .12s var(--ease-out);
  text-decoration: none; color: inherit;
}
.un-offre:hover { padding-left: 16px; background: var(--un-blue-wash); }
.un-offre-num {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--fg-3);
  padding-top: 10px;
  letter-spacing: 0.04em;
}
.un-offre-title {
  font-size: clamp(28px, 2.6vw, 38px);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.08;
  color: var(--fg-1);
}
.un-offre-methods {
  display: flex; flex-direction: column; gap: 10px;
  padding-top: 12px;
}
.un-offre-method {
  font-size: 15px; color: var(--fg-2);
  display: flex; align-items: baseline; gap: 12px;
}
.un-offre-method::before {
  content: '—'; color: var(--un-blue); flex: none;
}
.un-offre-arrow {
  font-size: 22px; color: var(--fg-1);
  padding-top: 10px; justify-self: end;
  transition: transform .18s var(--ease-out);
}
.un-offre:hover .un-offre-arrow { transform: translateX(6px); color: var(--un-blue); }

/* ============================================================
   CAS CLIENTS
   ============================================================ */
.un-cases {
  margin-top: 8px;
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--border-1);
  border-left: 1px solid var(--border-1);
}
.un-case {
  padding: 40px 36px;
  border-right: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  display: flex; flex-direction: column; gap: 16px;
  min-height: 320px;
  cursor: pointer;
  transition: background .14s var(--ease-out);
  text-decoration: none; color: inherit;
  background: #fff;
  position: relative;
}
.un-case:hover { background: var(--un-blue-wash); }
.un-case-eyebrow {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px; color: var(--fg-3);
  letter-spacing: 0.06em;
}
.un-case-sector {
  background: var(--bg-3); color: var(--fg-2);
  padding: 3px 10px; border-radius: 999px;
  font-size: 11px; letter-spacing: 0.06em;
}
.un-case-client {
  font-size: 13px; font-weight: 500; color: var(--un-blue);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.un-case-title {
  font-size: 28px; font-weight: 400;
  letter-spacing: -0.018em; line-height: 1.12;
  color: var(--fg-1); margin: 0;
}
.un-case-deliverables {
  margin-top: auto;
  display: flex; flex-wrap: wrap; gap: 6px 8px;
}
.un-case-deliv {
  font-size: 12px; font-weight: 500;
  background: #fff; color: var(--fg-1);
  border: 1px solid var(--border-1);
  padding: 4px 10px; border-radius: 999px;
}
.un-case:hover .un-case-deliv {
  border-color: var(--un-blue); color: var(--un-blue);
}
.un-case-read {
  font-size: 13px; color: var(--un-blue);
  font-weight: 500;
  align-self: flex-start;
}

/* ============================================================
   SECTEURS — horizontal marquee / tag cloud
   ============================================================ */
.un-secteurs-block {
  background: var(--bg-2);
  padding: 80px 48px;
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
}
.un-secteurs-inner { max-width: 1440px; margin: 0 auto; }
.un-secteurs-head {
  display: grid; grid-template-columns: 1fr 1.6fr;
  gap: 48px; align-items: start;
  margin-bottom: 48px;
}
.un-secteurs-head h2 {
  font-size: clamp(36px, 3.8vw, 52px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05; margin: 0;
  max-width: 18ch;
}
.un-secteurs-head h2 em { color: var(--un-blue); font-style: italic; }
.un-secteurs-list {
  display: flex; flex-wrap: wrap; gap: 12px;
}
.un-secteur {
  font-size: 18px; font-weight: 400;
  text-decoration: none;
  padding: 12px 22px;
  border: 1.5px solid var(--fg-1);
  border-radius: 999px;
  color: var(--fg-1); background: #fff;
  letter-spacing: -0.005em;
  transition: all .14s var(--ease-out);
  cursor: pointer;
}
.un-secteur:hover {
  background: var(--un-blue); color: #fff;
  border-color: var(--un-blue);
}

/* ============================================================
   OBSERVATOIRE IA — preview card linking to dedicated page
   ============================================================ */
.un-obs-block {
  background: var(--un-black); color: #fff;
  padding: 96px 48px;
}
.un-obs-inner {
  max-width: 1440px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 64px; align-items: end;
}
.un-obs-block .un-eyebrow { color: rgba(255,255,255,.7); }
.un-obs-block h2 {
  font-size: clamp(44px, 5vw, 76px);
  font-weight: 400; letter-spacing: -0.025em;
  line-height: 1.02; margin: 24px 0 32px;
  color: #fff; max-width: 14ch;
}
.un-obs-block h2 em { color: var(--un-yellow-sun); font-style: italic; }
.un-obs-desc {
  font-size: 18px; line-height: 1.55;
  color: rgba(255,255,255,.75);
  max-width: 50ch;
  margin: 0 0 36px;
}
.un-obs-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.un-obs-btn {
  font-size: var(--btn-fs); font-weight: 500;
  padding: var(--btn-pad-y) var(--btn-pad-x); border-radius: 999px;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .12s var(--ease-out);
  font-family: var(--font-sans); border: none; cursor: pointer;
}
.un-obs-btn-primary { background: var(--un-yellow-sun); color: var(--un-black); }
.un-obs-btn-primary:hover { background: #fff; }
.un-obs-btn-ghost {
  background: transparent; color: #fff;
  border: 1.5px solid rgba(255,255,255,.3);
}
.un-obs-btn-ghost:hover { border-color: #fff; }

/* ============================================================
   FINAL CTA
   ============================================================ */
.un-final-cta {
  padding: 120px 48px;
  max-width: 1440px; margin: 0 auto;
  text-align: left;
}
.un-final-cta h2 {
  font-size: clamp(56px, 7vw, 120px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
  margin: 0 0 32px;
  max-width: 16ch;
}
.un-final-cta h2 em { font-style: italic; color: var(--un-blue); }
.un-final-cta p {
  font-size: 20px; color: var(--fg-2);
  line-height: 1.5; max-width: 48ch;
  margin: 0 0 48px;
}
.un-final-cta-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

/* ============================================================
   FOOTER
   ============================================================ */
.un-footer {
  background: var(--un-black); color: #fff;
  padding: 80px 48px 32px;
}
.un-footer-row {
  max-width: 1440px; margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr 2fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.un-mark-big-img {
  height: 56px; width: auto; display: block;
  filter: brightness(0) invert(1);
}
.un-footer-tagline {
  margin-top: 20px; font-size: 16px;
  line-height: 1.55; color: rgba(255,255,255,.7);
  max-width: 32ch;
}
.un-footer-tagline em { color: #fff; font-style: italic; }
.un-footer-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.un-footer-col { display: flex; flex-direction: column; gap: 10px; }
.un-footer-col .un-eyebrow { color: rgba(255,255,255,.5); margin-bottom: 6px; }
.un-footer-col a { color: #fff; text-decoration: none; font-size: 15px; }
.un-footer-col a:hover { color: var(--un-blue-cyan); }
.un-footer-linkedin {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 4px;
}
.un-footer-linkedin svg { display: block; }
.un-footer-meta {
  max-width: 1440px; margin: 0 auto;
  padding-top: 32px;
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px; color: rgba(255,255,255,.5);
  flex-wrap: wrap; gap: 12px;
}
.un-footer-meta a { color: rgba(255,255,255,.7); text-decoration: underline; text-underline-offset: 3px; }
.un-footer-meta a:hover { color: #fff; }

/* ============================================================
   TWEAKS PANEL
   ============================================================ */
.un-tweaks {
  position: fixed; right: 24px; top: 92px;
  z-index: 50;
  width: 280px;
  background: #fff;
  border: 2px solid var(--un-black);
  padding: 20px;
  font-family: var(--font-sans);
  display: none;
}
.un-tweaks.open { display: block; }
.un-tweaks-title {
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 14px;
  display: flex; justify-content: space-between;
}
.un-tweaks-title .close {
  cursor: pointer; color: var(--fg-1); font-size: 14px;
  letter-spacing: 0;
}
.un-tweaks h4 {
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-3);
  margin: 16px 0 8px;
}
.un-tweaks h4:first-of-type { margin-top: 0; }
.un-tweak-options { display: flex; flex-direction: column; gap: 4px; }
.un-tweak-opt {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  background: transparent;
  border: 1px solid var(--border-1);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg-1);
  text-align: left;
  transition: all .12s var(--ease-out);
}
.un-tweak-opt:hover { border-color: var(--un-blue); }
.un-tweak-opt.active { background: var(--un-blue); color: #fff; border-color: var(--un-blue); }
.un-tweak-opt .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--fg-muted); flex: none;
}
.un-tweak-opt.active .dot { background: var(--un-yellow-sun); }
.un-tweak-note {
  font-size: 12px; color: var(--fg-3);
  line-height: 1.45; margin-top: 10px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* Intermediate widths — scale the enlarged nav down so every link stays visible
   before the burger menu takes over at 960px. */
@media (max-width: 1200px) {
  .un-nav-bar { padding: 20px 32px; }
  .un-mark { height: 44px; }
  .un-links { gap: 22px; }
  .un-links a { font-size: 15px; }
  .un-cta { font-size: 15px; padding: 11px 20px; }
}

@media (max-width: 960px) {
  .un-section { padding: 64px 24px; }
  .un-hero { padding: 48px 24px 32px; }
  .un-section-head, .un-secteurs-head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }
  .un-nav-bar { padding: 14px 20px; }
  .un-links { display: none; }
  .un-nav .un-cta { display: none; }
  .un-burger {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; padding: 0 10px;
    background: none; border: none; cursor: pointer;
  }
  .un-burger span { display: block; height: 2px; background: var(--fg-1); border-radius: 2px; }
  .un-mega { display: none; }
  .hero-A .un-hero-stats { grid-template-columns: 1fr; }
  .hero-A .stat { border-right: none; border-bottom: 1px solid var(--border-1); padding: 24px 0; }
  .hero-A .stat:last-child { border-bottom: none; }
  .un-manifesto-block { padding: 64px 24px; }
  .un-manifesto-inner { grid-template-columns: 1fr; gap: 24px; }
  .un-stats-section { padding: 64px 24px; }
  .un-stats-grid { grid-template-columns: 1fr; gap: 32px; }
  .un-defis { grid-template-columns: 1fr; }
  .un-defi { border-right: none; border-bottom: 1px solid var(--border-1); padding: 32px 0 !important; }
  .un-offre { grid-template-columns: 50px 1fr; gap: 16px; }
  .un-offre-methods { grid-column: 1 / -1; padding-top: 0; }
  .un-offre-arrow { display: none; }
  .un-cases { grid-template-columns: 1fr; border-left: none; }
  .un-case { border-right: none; padding: 32px 24px; min-height: auto; }
  .un-secteurs-block { padding: 56px 24px; }
  .un-obs-block { padding: 64px 24px; }
  .un-obs-inner { grid-template-columns: 1fr; gap: 32px; }
  .un-final-cta { padding: 80px 24px; }
  .un-footer { padding: 56px 24px 24px; }
  .un-footer-row { grid-template-columns: 1fr; gap: 40px; padding-bottom: 40px; }
  .un-footer-cols { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .un-tweaks { right: 16px; top: 76px; width: calc(100% - 32px); max-width: 320px; }
  .un-floating-cta { right: 16px; bottom: 16px; padding: 12px 18px; font-size: 13px; }
  .un-footer-meta { font-size: 11px; }
}

/* ============================================================
   CONTACT MODAL (popin)
   ============================================================ */
.cmodal-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background: rgba(10, 10, 10, 0.55);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none;
  transition: opacity .24s var(--ease-out);
}
.cmodal-overlay.open { opacity: 1; pointer-events: auto; }
.cmodal {
  position: relative;
  width: 100%; max-width: 560px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: #fff;
  border-top: 5px solid var(--un-blue);
  padding: 48px 48px 44px;
  transform: translateY(16px) scale(0.98);
  transition: transform .26s var(--ease-out);
}
.cmodal-overlay.open .cmodal { transform: translateY(0) scale(1); }
.cmodal-close {
  position: absolute; top: 20px; right: 20px;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--border-1); border-radius: 999px;
  cursor: pointer; color: var(--fg-1); font-size: 18px; line-height: 1;
  transition: background .14s var(--ease-out), color .14s var(--ease-out), border-color .14s var(--ease-out);
}
.cmodal-close:hover { background: var(--fg-1); color: #fff; border-color: var(--fg-1); }
.cmodal-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--un-blue);
}
.cmodal-title {
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 400; letter-spacing: -0.025em; line-height: 1.05;
  color: var(--fg-1);
  margin: 10px 0 8px;
}
.cmodal-sub {
  font-size: 16px; line-height: 1.5; color: var(--fg-2);
  margin: 0 0 28px; max-width: 44ch;
}
.cmodal-form { display: flex; flex-direction: column; gap: 18px; }
.cmodal-field { display: flex; flex-direction: column; gap: 7px; }
.cmodal-field span {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-3);
}
.cmodal-field input,
.cmodal-field textarea {
  background: #fff;
  border: none; border-bottom: 1.5px solid var(--border-1);
  padding: 9px 0; font-size: 16px; font-family: var(--font-sans);
  color: var(--fg-1);
  transition: border-color .14s var(--ease-out);
}
.cmodal-field input:focus,
.cmodal-field textarea:focus { outline: none; border-bottom-color: var(--un-blue); }
.cmodal-field textarea { resize: vertical; min-height: 96px; }
.cmodal-submit { align-self: flex-start; margin-top: 10px; }
.cmodal-success {
  display: none;
  flex-direction: column; gap: 12px;
  padding: 12px 0 8px;
}
.cmodal.is-success .cmodal-form { display: none; }
.cmodal.is-success .cmodal-success { display: flex; }
.cmodal-success h3 {
  font-size: 26px; font-weight: 400; letter-spacing: -0.02em;
  color: var(--fg-1); margin: 0;
}
.cmodal-success p { font-size: 16px; line-height: 1.5; color: var(--fg-2); margin: 0; }
@media (max-width: 640px) {
  .cmodal { padding: 40px 24px 32px; }
  .cmodal-overlay { padding: 0; align-items: flex-end; }
  .cmodal { max-width: 100%; max-height: 92vh; }
}